Valve-cap



D. W. MANNHARDT.

VALVE CAP.

APPLrcATmN HLED 0:21.13. :919.

Panted Aug. 10, 1920.

UNITED ST ATESfA DANIEL W.

ATENT ori-"ice,

MANNHARDT, 0F WASHINGTON, IOWA.

VALVE-CAE.

Application ied October 1 To u/ whom it ninf/ conf-ern le it known that l. l).\i\ii-:i. ll'. ANN- ii.\iuii'. a citizen o't' the l'nited `S'tates, residing at 'iusliiugg'ton.y in the countyy ot'. \\'a.\hington and State ot' Iowa, have invented new and useful improvements in Yalie--Lapsj of whichthe following is a ,apeciticatioin Thiel invention relatey to attachment toi.' valves` and is espeeiall)v designed Jfor use in connection with valvea vloi' pneumatic tires.

n object of the invention is the proviaion ot a cap for valves of pneumatic tires, which will eti'eetuallv prevent the entrance of duet` or other toi-eign mattei' likelv to intert'cre with the proper operation ot' the valve, and which may be Secured in a manner to pre vent its loss.

Another object ie the provision ot a cap of this character. by meaux` ot' which the valve maY be quickly uncovered t'or the purpose ot' intlating the tire and quickly re placed after ination, the attachment nerving to eliminate the use ot' the sleeve usually employed for inclosing the valve easing.

Other objects and advantages of the invention will appear as the following dew Scription` is read in connection with the accompanying drawings.

lu the drawings:

Figure l is a Jfront elevation of the in vention secured to the valve of a pneumatic tire.

l? ig. 2 is a side elevation of the same showing the valve uncovered and the device swung upon its pivot to permit of the inflation ot the tire.

Fig. 3 is i longitudinal sectional view with the part in the position shown in Fig. 1.

Fig. 4 is a `similar view tied torni ot the invention.

Referring to the drawings in detail, wherein like charac-tera of reference denote corresponding parts` there is. illustrated at 1() the casing ot' a valve usuall \v employei for inflating inner tubeV ot pneumatic tires. This casing is exteriorlv threaded for the reception oi' the usual duet cap and protect.- ing sleeve. but it is the purpose ot this iin# vention to do awaiv with the use ot this cap and sleeve. For this purpose there, iS proshowing a modi- Speccation of Letters Patent.

Patented Aug. 1t), 1920.

Serial No. 330,175.

vided a. mit ll` which 'i5 mounted upon the exterior otI the caaing llt, and is provided with luga l2. which terminate in pintlea lil.

livotally mounted upon the pintlea lil, ia a v oke lt, the voke lt having pert'oi'ations lf) in each end thereol to receive the .pintlea 'lhe voke is preferably Ushaped in cross section to strengthen the annie. and is pro vided with a projecting sleeve 1G.

Mounted tor sliding. movement in the ,sleeve t'i. ie a rod 1T. the said rod having a bearing iu an opening in). provided in one` end ot' the sleeve and having ita` iiuier end enlarged. aa at lit. to forni a bearing tor the inner end ot| the rod and to providea aholdder IL loaitioned between this yshoulder and the outer end ot' the sleeve 18, is a `coiled spring 2 the latter surrounding the rod 17 and acting to norm-all)v force the inner eiid ot' the rod toward the pivoted end of the Ivoke. 'l`he outer end of the rod is provided with a head :2:2 for convenience ot' operation. Tlie inner end of the rod 1T is socketed, so as to provide a cap 23. the lattei' being designed to engage over the reduced end oi the valve casing lt). Seated out releaaing the air from the tire.

In li ig. l there is illustrated a forni of the invention in which the rod 1T is threaded within the Sleeve lo. so that the said rod nia v be screwed inward to engage the cap over the end ot' the valve.

The invention is susceptible of various changes` inits torni. proportione` and minor detail ot' construction and the right is herein reserved to make such changes as propcrl v t'all within tho scope oi" the appended claim.

llaving described the invention, what is claimed is:

The combination with a valve casing` of a nut threadedly engaged ou the casing, a voke having its endpivotally Secured to the nut` a sleeve extending from the yoke, a plunger slidable in the sleeve` a reduce shank extending from the plunger and prolower end of the plunger for engagement over the end of the vulve casing, and a,

`.spring located Within the chamber to yield- 10 mgly hold the cap in such engagement.

In testimony whereof I alx my signature.

DANIEL W. MAN NHARDT. 

